Dell PowerEdge R940xa
Dell's 14th-generation four-socket 4U rack server built for GPU-accelerated database workloads, combining up to four CPUs with up to four double-width GPUs in a 1:1 ratio. Up to four 2nd Gen Intel Xeon Scalable processors (up to 28 cores each), 48 DDR4 DIMM slots (up to 15.36 TB with Optane persistent memory), up to 12 PCIe Gen3 slots and up to 32 x 2.5-inch drives.
Memory
- Slots
- 48 x DDR4 DIMM
- Type
- Registered ECC DDR4 RDIMM/LRDIMM, up to 2933 MT/s
- Persistent memory
- Up to 24 x Intel Optane DC Persistent Memory (DCPMM), max 12.28 TB (15.36 TB combined with LRDIMM)
- NVDIMM
- Up to 12 x NVDIMM-N, 384 GB max
- Max capacity
- Dual CPU: 6144 GB min - 12.288 TB max; Quad CPU: 1024 GB min - 12.288 TB max (256 GB octal-rank LRDIMM)
- Notes
- RDIMMs must not be mixed with LRDIMMs; NVDIMM-Ns must not be mixed with LRDIMMs (NVDIMM-Ns can be mixed with RDIMMs); 64 GB DDP LRDIMMs must not be mixed with 128 GB TSV (3DS) LRDIMMs; mixing more than two DIMM capacities in one system is not supported; 256 GB DIMMs do not support GPU configuration
Storage
- Front bays
- Up to 8 x 2.5" SAS/SATA (HDD/SSD), max 61.44 TB; up to 24 x 2.5" SAS/SATA, max 184.32 TB; or up to 32 x 2.5" SAS/SATA with up to 4 direct-attached NVMe PCIe SSDs, max 245.76 TB
- Controllers
- Internal: PERC H330, H730P; Software RAID: S140; External PERC (RAID): H840; 12 Gbps SAS HBA (non-RAID): external 12 Gbps SAS HBA, internal HBA330 (non-RAID)
- Boot
- Boot Optimized Storage Subsystem: hardware RAID 2 x M.2 SSDs, 240 GB or 480 GB
Graphics
- Accelerator options
- Up to 4 double-width GPUs, or up to 4 double-width / 8 single-width full-height FPGAs (see Dell.com/GPU for the current qualified list)
Expansion
- 4-CPU, GPU-ready
- X16 PCIe Riser 1: 2 x16 slots (2, 4, full height/full length) + 1 x8 slot (5, full height/half length); X16 PCIe Riser 2: 2 x16 slots (9, 11, full height/full length) + 1 x8 slot (12, full height/half length)
- 4-CPU, non-GPU
- X8 PCIe Riser 1: 5 x8 slots (1-5, full height/half length); X8 PCIe Riser 2: 5 x8 slots (8-12, full height/half length)
- 4-CPU, with front NVMe
- X8 PCIe Riser 1: 4 x8 slots (1-4); X8 PCIe Riser 2: 4 x8 slots (8-11); X16 risers as GPU-ready config
- 2-CPU, GPU-ready
- X16 risers: 1 slot each (4, 11); X8 risers: 2 slots each (3-4, 10-11)
- Total
- Up to 12 PCIe Gen3 slots (6 x16 slots, or 2 x16 + 10 x8 slots)
Networking
- Daughter card options
- 4 x 1GbE, 4 x 10GbE, 2 x 10GbE + 2 x 1GbE, or 2 x 25GbE
Power
- PSU options
- Platinum AC: 750 W, 1100 W, 1100 W 240 VDC (China only), 1600 W, 2000 W, 2400 W; Titanium AC: 1600 W, 2600 W; Gold: 1100 W -48 VDC; 750 W DC (China only)
- Redundancy
- Four hot-plug AC or DC power supplies, 2+2 redundant, with auto-sensing and autoswitching capability
- Fans
- 6 hot-plug fans with N+1 redundancy
Ports
- Front
- 1 x dedicated iDRAC Direct Micro-USB, 2 x USB 2.0, 1 x VGA (optional 1 x USB 3.0, 8-drive configuration only)
- Rear
- 1 x dedicated iDRAC port, 1 x serial, 2 x USB 3.0, 1 x VGA
- Internal
- 1 x USB 3.0
- Video
- 2 x VGA
Physical
- Form factor
- 4U rack
- Dimensions
- 174.3 mm H x 441.16 mm W x 835.9 mm D (dimensions exclude bezel)
- Weight
- 56.0 kg (123.5 lb)
Management
- BMC
- iDRAC9, iDRAC Direct, iDRAC RESTful API with Redfish, Quick Sync 2 BLE/wireless
- Software
- OpenManage Enterprise, OpenManage Essentials, OpenManage Mobile, OpenManage Power Center; Dell EMC Repository Manager, Update Package, System Update, Server Update Utility, iDRAC Service Module
- Integrations
- Microsoft System Center, VMware vCenter, BMC TrueSight, Red Hat Ansible Modules; Nagios Core/XI, Micro Focus Operations Manager, IBM Tivoli Netcool/OMNIbus
- Security
- TPM 1.2/2.0 (optional), cryptographically signed firmware, Secure Boot, System Lockdown (requires OpenManage Enterprise), Silicon Root of Trust, Secure Erase
- Bezel
- Optional LCD bezel or security bezel
Operating systems
- Supported
- Canonical Ubuntu LTS, Citrix Hypervisor, Oracle Linux, Microsoft Windows Server LTSC with Hyper-V, Red Hat Enterprise Linux, SUSE Linux Enterprise Server, VMware ESXi
- Details
- See Dell.com/OSsupport for versions and interoperability
Processors
- Intel Xeon Gold 5213W
- Intel Xeon Gold 5215
- Intel Xeon Gold 5215L
- Intel Xeon Gold 5215M
- Intel Xeon Gold 5216W
- Intel Xeon Gold 5217
- Intel Xeon Gold 5218
- Intel Xeon Gold 5218B
- Intel Xeon Gold 5218N
- Intel Xeon Gold 5218T
- Intel Xeon Gold 5220
- Intel Xeon Gold 5220S
- Intel Xeon Gold 5220T
- Intel Xeon Gold 5222
- Intel Xeon Gold 6222V
- Intel Xeon Gold 6226
- Intel Xeon Gold 6230
- Intel Xeon Gold 6230N
- Intel Xeon Gold 6230T
- Intel Xeon Gold 6231
- Intel Xeon Gold 6233
- Intel Xeon Gold 6234
- Intel Xeon Gold 6238
- Intel Xeon Gold 6238L
- Intel Xeon Gold 6238M
- Intel Xeon Gold 6238T
- Intel Xeon Gold 6240
- Intel Xeon Gold 6240L
- Intel Xeon Gold 6240M
- Intel Xeon Gold 6240Y
- Intel Xeon Gold 6241W
- Intel Xeon Gold 6242
- Intel Xeon Gold 6244
- Intel Xeon Gold 6245W
- Intel Xeon Gold 6246
- Intel Xeon Gold 6248
- Intel Xeon Gold 6250
- Intel Xeon Gold 6250L
- Intel Xeon Gold 6252
- Intel Xeon Gold 6252N
- Intel Xeon Gold 6253W
- Intel Xeon Gold 6254
- Intel Xeon Gold 6256
- Intel Xeon Gold 6261
- Intel Xeon Gold 6262V
- Intel Xeon Gold 6267
- Intel Xeon Gold 6290
- Intel Xeon Platinum 8222L
- Intel Xeon Platinum 8251
- Intel Xeon Platinum 8253
- Intel Xeon Platinum 8256
- Intel Xeon Platinum 8259L
- Intel Xeon Platinum 8260
- Intel Xeon Platinum 8260L
- Intel Xeon Platinum 8260M
- Intel Xeon Platinum 8260Y
- Intel Xeon Platinum 8267W
- Intel Xeon Platinum 8268
- Intel Xeon Platinum 8270
- Intel Xeon Platinum 8272L
- Intel Xeon Platinum 8274
- Intel Xeon Platinum 8276
- Intel Xeon Platinum 8276L
- Intel Xeon Platinum 8276M
- Intel Xeon Platinum 8279W
- Intel Xeon Platinum 8280
- Intel Xeon Platinum 8280L
- Intel Xeon Platinum 8280M
- Intel Xeon Platinum 8284